Kern ecb n series bench platform scales kern ecb 50k 2n the kern ecb 50k 3n portable bench platform scales have been built with easy transportation in mind the slim line build of only 60mm high allows the scales to be easily tucked under arm or placed inside a casing the scales can be powered by batteries 6x aa not supplied for use on the move or mains when a convenient static location is available the platform scales have a very fast display giving steady weight values within 2 s